"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.MiniLayout = void 0;

var _react = _interopRequireWildcard(require("react"));

var _throttle = _interopRequireDefault(require("../../../../utils/throttle"));

var _excluded = ["rowData", "height", "rowCount", "rowHeight", "width", "rowRenderer", "className", "isNormal", "onPullingUp", "onScrollBottom", "overscanRowCount", "lowerThreshold", "onScrollTop", "onScroll", "enabled", "scrollToIndex"];

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

var MiniLayout = /*#__PURE__*/(0, _react.forwardRef)(function (_ref, ref) {
  var rowData = _ref.rowData,
      height = _ref.height,
      rowCount = _ref.rowCount,
      rowHeight = _ref.rowHeight,
      width = _ref.width,
      rowRenderer = _ref.rowRenderer,
      className = _ref.className,
      _ref$isNormal = _ref.isNormal,
      isNormal = _ref$isNormal === void 0 ? true : _ref$isNormal,
      onPullingUp = _ref.onPullingUp,
      onScrollBottom = _ref.onScrollBottom,
      overscanRowCount = _ref.overscanRowCount,
      lowerThreshold = _ref.lowerThreshold,
      onScrollTop = _ref.onScrollTop,
      onScroll = _ref.onScroll,
      _ref$enabled = _ref.enabled,
      enabled = _ref$enabled === void 0 ? true : _ref$enabled,
      _ref$scrollToIndex = _ref.scrollToIndex,
      scrollToIndex = _ref$scrollToIndex === void 0 ? -1 : _ref$scrollToIndex,
      props = _objectWithoutProperties(_ref, _excluded);

  var Com = isNormal ? require("./normal-list") : require("./virtual-list"); // 是否正在上拉加载，防止重复触发

  var isPullUpLoading = (0, _react.useRef)(false); // 偏移量

  var offset = (0, _react.useRef)(0); // 行元素

  var rowRendererNode = /*#__PURE__*/_react.default.memo(rowRenderer); // 获取rowID


  var INSTANCE_ID = props.id || 0;
  var scrollIntoView = (0, _react.useMemo)(function () {
    return isNormal ? "normal-list-".concat(INSTANCE_ID, "-").concat(scrollToIndex) : "virtual-list-".concat(INSTANCE_ID, "-").concat(scrollToIndex);
  }, [scrollToIndex]);
  (0, _react.useImperativeHandle)(ref, function () {
    return {
      scrollTop: offset
    };
  }); // 处理触底事件

  var handleScrollToLowerEvent = function handleScrollToLowerEvent(e) {
    if (onPullingUp && !isPullUpLoading.current) {
      isPullUpLoading.current = true;
      onPullingUp(e).then(function () {
        isPullUpLoading.current = false;
      }).catch(function () {
        isPullUpLoading.current = false;
      });
    }

    if (typeof onScrollBottom === 'function') {
      onScrollBottom(e);
    }
  }; // 处理滑动事件


  var handleScrollEvent = (0, _throttle.default)(function (_ref2) {
    var detail = _ref2.detail;

    if (typeof onScroll === 'function') {
      onScroll(_objectSpread(_objectSpread({}, detail), {}, {
        clientHeight: height
      }));
    } // 保存偏移量，以供外部访问


    offset.current = detail.scrollTop;
  }, 16);
  return /*#__PURE__*/_react.default.createElement(Com, _extends({
    className: className,
    itemData: rowData,
    itemCount: rowCount,
    itemSize: rowHeight,
    onScrollToLower: handleScrollToLowerEvent,
    height: height,
    width: width,
    overscanCount: overscanRowCount,
    threshold: lowerThreshold,
    onScrollToUpper: onScrollTop,
    scrollIntoView: scrollIntoView,
    scrollY: enabled,
    onScroll: handleScrollEvent
  }, props), rowRendererNode);
});
exports.MiniLayout = MiniLayout;